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Vulnerabilities

Vulnerability · CVE-2025-34227

Nagios XI < 2026R1 is vulnerable to an authenticated command injection vulnerability within the MongoDB Database, MySQL Query, MySQL Server, Postgres Server, and Postgres Query wiz

Published Sep 25, 2025 · catalog updated May 15, 2026 · Nagios Nagios XI

Last checked Oct 29, 2026. A connected source was read within the last 7 days.

Check this week

CVE-2025-34227 is not in CISA KEV. FIRST estimates a 25.35% chance of exploitation in the next 30 days. Check whether you run Nagios Nagios XI.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
High8.6
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
25.35%
Remediation
Version ranges on file
Affected products
vendor Nagios Nagios XI 0 <2026R1

Nagios XI < 2026R1 is vulnerable to an authenticated command injection vulnerability within the MongoDB Database, MySQL Query, MySQL Server, Postgres Server, and Postgres Query wizards. It is possible to inject shell characters into arguments provided to the service and execute arbitrary system commands on the underlying host as the user.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor Nagios Nagios XI 0 <2026R10 <2026R1

How to fix CVE-2025-34227

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2025-34227 is not in CISA KEV. FIRST estimates a 25.35% chance of exploitation in the next 30 days. Check whether you run Nagios Nagios XI.

Which versions are affected?

Compare what you have installed with Nagios Nagios XI 0 <2026R1 0 <2026R1. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 25.35%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

MongoDB securityMySQL securityPostgreSQL security

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Sep 25, 2025 · EUVD

    Detected

    Nagios XI < 2026R1 is vulnerable to an authenticated command injection vulnerability within the MongoDB Database, MySQL Query, MySQL Server, Postgres Server, and Postgres Query wizards. It is possible to inject shell characters into arguments provided to the service and execute arbitrary system commands on the underlying host as the user.

  2. May 15, 2026 · EUVD

    Updated

    Nagios XI < 2026R1 is vulnerable to an authenticated command injection vulnerability within the MongoDB Database, MySQL Query, MySQL Server, Postgres Server, and Postgres Query wizards. It is possible to inject shell characters into arguments provided to the service and execute arbitrary system commands on the underlying host as the user.

Sources

  • CVE.orgVulnerability recordCVE-2025-34227

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-34227

    30-day exploitation probability 25.35%

    first.org
  • EUVDVulnerability recordEUVD-2025-31147

    Nagios XI < 2026R1 is vulnerable to an authenticated command injection vulnerability within the MongoDB Database, MySQL Query, MySQL Server, Postgres Server, and Postgres Query wizards. It is possible to inject shell characters into arguments provided to the service and execute a

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 29, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSOct 23, 2026
  • CVE.orgOct 22, 2026
  • EUVDOct 22, 2026